Conclusion: Central nervous system infiltration occurrs rarely in MM.Meningeal infiltration is the most common complication and frequently accompanied with other soft tissue plasmacytoma.

• 结论：多发性骨髓瘤累及中枢神经系统较为少见，受累部位以脑膜最为常见，常合并其他部位的软组织浆细胞瘤。